Section 3.10: Site Plans and Technical Data - Rick Neufeld Comments

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Northern Gateway Pipelines Inc. Section 3.10: Site Plans and Technical Data Table of Contents Figure 4-3 Remote Release System Console (Source: Harbour & Marine Engineering) The Mooring Load Monitoring System monitors the forces in each mooring line in real time by using load cells installed in each hook. The system helps operators balance the mooring line pattern and helps prevent lines from becoming overstressed and breaking. The system can be installed with visual and audio alarms located local to the hook, as shown in Figure 4-4, and remotely at the control centre. The alarms can alert mooring personnel when line tensions become too high or too low. All mooring load information is sent to the marine monitoring station located in the control centre. The data can also be transmitted and displayed to the pilots and ship personnel via carry-on laptops or hand-held monitors. Page 4-10 FINAL - Rev. 0 January 20, 2010
Northern Gateway Pipelines Inc. Section 3.10: Site Plans and Technical Data Table of Contents Figure 4-4 Mooring Load Monitoring Alarms (Source: Harbour & Marine Engineering) 4.14 Metocean Monitoring System Meteorological and oceanographic sensors will be installed at Kitimat Terminal to monitor local environmental conditions at the tanker berths. These sensors will provide real time data including wind speed, wind direction, barometric pressure, temperature, visibility, tidal changes, wave height, wave direction, current speed, and current direction. This information is critical since the environmental conditions can have a significant effect on vessel handling during the berthing and un-berthing manoeuvres and can cause vessel movements while the vessel is moored at the berth. The environmental sensors can include: An onshore weather station typically located on the roof of the control room building or in some other exposed location near the tanker berths. The station will be capable of logging the full range of atmospheric conditions including wind speed and direction, barometric pressure, humidity, temperature, rainfall, snowfall, and visibility; An offshore buoy sensor(s) anchored near the terminal and capable of measuring wave profile, wave direction and current; A non-contact wave-profile / tide laser mounted on the berth structure and capable of measuring wave height, wave profile, and tide level and trend; and, A Doppler current meter immersed at the berth and capable of measuring current speed and direction at fixed depths or over the entire water column. In addition, an offshore sea-bed mounted Acoustic Doppler Current Profiler (ADCP) sensor with wave profiling capabilities could be used. January 20, 2010 FINAL - Rev. 0 Page 4-11
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Section 3.10: Site Plans and Technical Data - Rick Neufeld Comments

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